Mileage calculator



FIG. 1 is a perspective view of a mileage calculator showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevational view thereof; and

FIG. 6 is a left side elevational view of a mileage calculator showing a modified form of my new design which is the same as the calculator in FIG. 1 save for the deletion of the strap.

The back is hollow and unornamented, the walls being of constant thickness. 

The ornamental design for a mileage calculator, substantially as shown and described. 